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[Qemu-devel] [PATCH 2/6] pci-assign: Add support for no-route
From: |
Alex Williamson |
Subject: |
[Qemu-devel] [PATCH 2/6] pci-assign: Add support for no-route |
Date: |
Tue, 02 Oct 2012 13:21:48 -0600 |
User-agent: |
StGIT/0.14.3 |
In the event that a pci-assign device is added to a chipset that
hasn't yet implemented the INTx routing interface, exit gracefully
instead of killing the VM. I'm sure we'll implement this for q35,
but there's no reason for such a harsh response.
Signed-off-by: Alex Williamson <address@hidden>
---
hw/kvm/pci-assign.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/kvm/pci-assign.c b/hw/kvm/pci-assign.c
index 05b93d9..7ce0f37 100644
--- a/hw/kvm/pci-assign.c
+++ b/hw/kvm/pci-assign.c
@@ -887,6 +887,12 @@ static int assign_intx(AssignedDevice *dev)
intx_route = pci_device_route_intx_to_irq(&dev->dev, dev->intpin);
assert(intx_route.mode != PCI_INTX_INVERTED);
+ if (intx_route.mode == PCI_INTX_NOROUTE) {
+ error_report("pci-assign: chipset provides no INTx routing "
+ "information, but device supports INTx interrupt
mode.\n");
+ pci_device_set_intx_routing_notifier(&dev->dev, NULL);
+ return -ENOTSUP;
+ }
if (dev->intx_route.mode == intx_route.mode &&
dev->intx_route.irq == intx_route.irq) {
[Qemu-devel] [PATCH 3/6] pci: Helper function for testing if an INTx route changed, Alex Williamson, 2012/10/02
[Qemu-devel] [PATCH 4/6] pci-assign: Use pci_intx_route_changed(), Alex Williamson, 2012/10/02
[Qemu-devel] [PATCH 5/6] msi: Add msi_get_message(), Alex Williamson, 2012/10/02
[Qemu-devel] [PATCH 6/6] pci-assign: Use msi_get_message(), Alex Williamson, 2012/10/02
Re: [Qemu-devel] [PATCH 0/6] Misc PCI cleanups, Alex Williamson, 2012/10/08